A bond has nine years to maturity, a $$2,000$ face value, and a $6\mathrm{.}5\%$ coupon rate with annual coupons. What is its yield to maturity if it is currently trading at $$1,643?$

A$.9\mathrm{.}55\%$

B$.7\mathrm{.}64\%$

C$.11\mathrm{.}45\%$

D$.13\mathrm{.}36\%$